The spectral degeneracies emerging as a consequence of parity-time (PT) symmetry exhibit a profound divergence from their conventional counterparts. They possess non-Hermitian nature and are ...
Physicists have long suspected that a peculiar quantum state lurks inside a class of materials known as kagome metals, but ...
Deliberately breaking crystal symmetry widens topological bandgaps in 2D magnets made from light elements, predicting quantum ...
Rotational symmetry-broken mechanism for simplifying exceptional point achievement. (a) 3D model of waveguide coupled RTR. (b) Field distribution and (c) far-field pattern of RTR at EP. The spectral ...